:root {
  --seo-ink: #17191f;
  --seo-muted: #5f6672;
  --seo-line: #dde2ea;
  --seo-soft: #f6f8fb;
  --seo-accent: #b84c2f;
  --seo-accent-dark: #7d2e1b;
}

body.seo-landing {
  margin: 0;
  color: var(--seo-ink);
  font-family: Arial, Helvetica, sans-serif;
  background: #ffffff;
}

.seo-topbar {
  border-bottom: 1px solid var(--seo-line);
  background: #ffffff;
}

.seo-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.seo-nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.seo-brand {
  color: var(--seo-ink);
  font-weight: 800;
  text-decoration: none;
}

.seo-nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.seo-nav-links a {
  color: var(--seo-muted);
  font-weight: 700;
  text-decoration: none;
}

.seo-hero {
  padding: 76px 0 52px;
  background: linear-gradient(180deg, #ffffff 0%, #f7f8fb 100%);
}

.seo-kicker {
  margin: 0 0 14px;
  color: var(--seo-accent);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.seo-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 36px;
  align-items: start;
}

.seo-hero h1 {
  margin: 0;
  font-size: clamp(2.25rem, 5vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: 0;
}

.seo-lead {
  margin: 22px 0 0;
  color: #38404c;
  font-size: 1.2rem;
  line-height: 1.75;
}

.seo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.seo-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 2px solid var(--seo-accent);
  border-radius: 6px;
  background: var(--seo-accent);
  color: #ffffff;
  font-weight: 800;
  text-decoration: none;
}

.seo-button.secondary {
  background: transparent;
  color: var(--seo-accent-dark);
}

.seo-snapshot {
  border: 1px solid var(--seo-line);
  border-radius: 8px;
  background: #ffffff;
  padding: 22px;
  box-shadow: 0 14px 40px rgba(25, 31, 44, 0.08);
}

.seo-snapshot h2 {
  margin: 0 0 12px;
  font-size: 1.2rem;
}

.seo-snapshot p,
.seo-card p,
.seo-faq p {
  color: var(--seo-muted);
  line-height: 1.7;
}

.seo-section {
  padding: 58px 0;
}

.seo-section.alt {
  background: var(--seo-soft);
}

.seo-section h2 {
  margin: 0 0 18px;
  font-size: 2rem;
}

.seo-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.seo-card,
.seo-faq {
  border: 1px solid var(--seo-line);
  border-radius: 8px;
  background: #ffffff;
  padding: 22px;
}

.seo-card h3,
.seo-faq h3 {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

.seo-list {
  margin: 0;
  padding-left: 20px;
  color: var(--seo-muted);
  line-height: 1.8;
}

.seo-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.seo-keywords span {
  border: 1px solid var(--seo-line);
  border-radius: 999px;
  padding: 8px 12px;
  background: #ffffff;
  color: #3f4652;
  font-weight: 700;
  font-size: 0.92rem;
}

.seo-related {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.seo-related a {
  border: 1px solid var(--seo-line);
  border-radius: 6px;
  padding: 12px 14px;
  color: var(--seo-accent-dark);
  background: #ffffff;
  font-weight: 800;
  text-decoration: none;
}

.seo-footer {
  border-top: 1px solid var(--seo-line);
  padding: 28px 0;
  color: var(--seo-muted);
}

@media (max-width: 860px) {
  .seo-hero-grid,
  .seo-card-grid {
    grid-template-columns: 1fr;
  }

  .seo-nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 16px 0;
  }
}